I built my first 4x4 system 3 years ago and it ran pretty good! It was not very refined though - Basically just a rear end bolted to the front! The new system is bullet proof and is the same sytem I have on my new 4x4 shorty, The 5sc required a lot more work to get all of the stock plastics bolted up! I'll try to get some more up close pics.
Here is a vid of my first generation 4x4 3 years ago.